00382nam a2200145   450000500170000002000180001704100130003508200190004810000230006724500340009026000500012430000090017465000290018370000240021220250801091947.0  a9789851001503  aEnglish   a540.724bYAD-c  aYadav, Paras Nath   aChemistry Practical Grade XI   aKathmandu bAdvance Saraswati Prakashanc2080  a182p  ascience, lab experiment   aChaudhary, Upendra